Fifty percent of Arizona residents surveyed in a poll said that President Donald Trump should not announce a pardon for former Sheriff Joe Arpaio at a Phoenix rally on Tuesday, while only 21 percent said he should do so, AzCentral reported.

Another 29 percent said they were not sure or did not know.

The survey was conducted by the Phoenix-based polling group OH Predictive Insights and asked, "This coming Tuesday, President Donald Trump will be in Arizona to hold a rally. Do you think President Donald Trump should pardon Sheriff Joe Arpaio at the event?"

Highest support for granting Arpaio a pardon came from those who are at least 55 years old, with 31 percent saying he should get one. However, only 15 percent of those under the age of 55 said he deserved a pardon.

The survey was conducted amid speculation that Trump would use the occasion of the Phoenix rally to pardon Arpaio for his recent criminal-contempt conviction.

"Half of Arizonans say pardoning Sheriff Joe Arpaio at the Phoenix rally is a bad choice," OH Predictive Insights Managing Partner Mike Noble said. "Another interesting takeaway from this survey besides Arizonans overall thinking an Arpaio pardon is a bad idea, it will go over like a lead balloon with the 54 years of age or younger crowd."

The online survey was conducted among 1,065 Arizonans from Friday through Sunday based on a U.S. Census-based Arizona population sample. The margin of error is plus or minus 3 percent.

Fifty percent of Arizona residents surveyed in a poll said that President Donald Trump should not announce a pardon for former Sheriff Joe Arpaio at a Phoenix rally on Tuesday, while only 21 percent said he should do so, AzCentral reported.